Variations of snow accumulation rate in Central Antarctica over the last 250 years
The present-day global climate changes, very likely caused by anthropogenic activity, may potentially present a serious threat to the whole human civilization in a near future. In order to develop a plan of measures aimed at elimination of these threats and adaptation to these undesirable changes, o...
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ftdoajarticles:oai:doaj.org/article:1bfd505731b94930bd35f713624335da 2023-05-15T13:48:05+02:00 Variations of snow accumulation rate in Central Antarctica over the last 250 years A. A. Ekaykin D. O. Vladimirova V. Ya. Lipenkov 2017-04-01T00:00:00Z https://doi.org/10.15356/2076-6734-2017-1-5-9 https://doaj.org/article/1bfd505731b94930bd35f713624335da RU rus Nauka https://ice-snow.igras.ru/jour/article/view/354 https://doaj.org/toc/2076-6734 https://doaj.org/toc/2412-3765 2076-6734 2412-3765 doi:10.15356/2076-6734-2017-1-5-9 https://doaj.org/article/1bfd505731b94930bd35f713624335da Лëд и снег, Vol 57, Iss 1, Pp 5-9 (2017) антарктида изотопный состав ледяные керны палеоклимат снегонакопление Science Q article 2017 ftdoajarticles https://doi.org/10.15356/2076-6734-2017-1-5-9 2023-03-19T01:40:13Z The present-day global climate changes, very likely caused by anthropogenic activity, may potentially present a serious threat to the whole human civilization in a near future. In order to develop a plan of measures aimed at elimination of these threats and adaptation to these undesirable changes, one should deeply understand the mechanism of past and present (and thus, future) climatic changes of our planet. In this study we compare the present-day data of instrumental observations of the air temperature and snow accumulation rate performed in Central Antarctica (the Vostok station) with the reconstructed paleogeographic data on a variability of these parameters in the past. First of all, the Vostok station is shown to be differing from other East Antarctic stations due to relatively higher rate of warming (1.6 °C per 100 years) since 1958. At the same time, according to paleogeographic data, from the late eighteenth century to early twenty-first one the total warming amounted to about 1 °C, which is consistent with data from other Antarctic regions. So, we can make a conclusion with high probability that the 30-year period of 1985–2015 was the warmest over the last 2.5 centuries. As for the snow accumulation rate, the paleogeographic data on this contain a certain part of noise that does not allow reliable concluding. However, we found a statistically significant relationship between the rate of snow accumulation and air temperature. This means that with further rise of temperature in Central Antarctica, the rate of solid precipitation accumulation will increase there, thus partially compensating increasing of the sea level. Article in Journal/Newspaper Antarc* Antarctic Antarctica Антарктида Directory of Open Access Journals: DOAJ Articles Antarctic Vostok Station ENVELOPE(106.837,106.837,-78.464,-78.464) Ice and Snow 57 1 5 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
антарктида изотопный состав ледяные керны палеоклимат снегонакопление Science Q |
spellingShingle |
антарктида изотопный состав ледяные керны палеоклимат снегонакопление Science Q A. A. Ekaykin D. O. Vladimirova V. Ya. Lipenkov Variations of snow accumulation rate in Central Antarctica over the last 250 years |
topic_facet |
антарктида изотопный состав ледяные керны палеоклимат снегонакопление Science Q |
description |
The present-day global climate changes, very likely caused by anthropogenic activity, may potentially present a serious threat to the whole human civilization in a near future. In order to develop a plan of measures aimed at elimination of these threats and adaptation to these undesirable changes, one should deeply understand the mechanism of past and present (and thus, future) climatic changes of our planet. In this study we compare the present-day data of instrumental observations of the air temperature and snow accumulation rate performed in Central Antarctica (the Vostok station) with the reconstructed paleogeographic data on a variability of these parameters in the past. First of all, the Vostok station is shown to be differing from other East Antarctic stations due to relatively higher rate of warming (1.6 °C per 100 years) since 1958. At the same time, according to paleogeographic data, from the late eighteenth century to early twenty-first one the total warming amounted to about 1 °C, which is consistent with data from other Antarctic regions. So, we can make a conclusion with high probability that the 30-year period of 1985–2015 was the warmest over the last 2.5 centuries. As for the snow accumulation rate, the paleogeographic data on this contain a certain part of noise that does not allow reliable concluding. However, we found a statistically significant relationship between the rate of snow accumulation and air temperature. This means that with further rise of temperature in Central Antarctica, the rate of solid precipitation accumulation will increase there, thus partially compensating increasing of the sea level. |
format |
Article in Journal/Newspaper |
author |
A. A. Ekaykin D. O. Vladimirova V. Ya. Lipenkov |
author_facet |
A. A. Ekaykin D. O. Vladimirova V. Ya. Lipenkov |
author_sort |
A. A. Ekaykin |
title |
Variations of snow accumulation rate in Central Antarctica over the last 250 years |
title_short |
Variations of snow accumulation rate in Central Antarctica over the last 250 years |
title_full |
Variations of snow accumulation rate in Central Antarctica over the last 250 years |
title_fullStr |
Variations of snow accumulation rate in Central Antarctica over the last 250 years |
title_full_unstemmed |
Variations of snow accumulation rate in Central Antarctica over the last 250 years |
title_sort |
variations of snow accumulation rate in central antarctica over the last 250 years |
publisher |
Nauka |
publishDate |
2017 |
url |
https://doi.org/10.15356/2076-6734-2017-1-5-9 https://doaj.org/article/1bfd505731b94930bd35f713624335da |
long_lat |
ENVELOPE(106.837,106.837,-78.464,-78.464) |
geographic |
Antarctic Vostok Station |
geographic_facet |
Antarctic Vostok Station |
genre |
Antarc* Antarctic Antarctica Антарктида |
genre_facet |
Antarc* Antarctic Antarctica Антарктида |
op_source |
Лëд и снег, Vol 57, Iss 1, Pp 5-9 (2017) |
op_relation |
https://ice-snow.igras.ru/jour/article/view/354 https://doaj.org/toc/2076-6734 https://doaj.org/toc/2412-3765 2076-6734 2412-3765 doi:10.15356/2076-6734-2017-1-5-9 https://doaj.org/article/1bfd505731b94930bd35f713624335da |
op_doi |
https://doi.org/10.15356/2076-6734-2017-1-5-9 |
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Ice and Snow |
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57 |
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1766248565008498688 |